Want to enlarge my bathroom by moving one wall into the hall. On the wall is a thermostat( hall side) and on bathroom a GFI plug and a timer for a ceiling fan. I was told by a contractor if I move the wall 2 ft. the wires will be too short. My breaker panel is 2 stories down and on the opposite side of the house. I can do without the thermostat but why do I have to worry about the length of the wires for the GFI and the timer. Please help